CN107700734A - Assembled is without bright beam bidirectional stress cavity floor - Google Patents

Abstract

The present invention provides assembled without bright beam bidirectional stress cavity floor, and comprising prefabricated post, prefabricated convex beam, prefabricated hollow board member termination cross rib is recessed, regenerates gate beam, joint close；It is characterized in that structure reinforcing bars are reserved at the prefabricated post both ends；The prefabricated convex beam two ends have reserved stress spiral or deformed bar；Longitudinal combination girt strip reinforcing bar insertion duct is prefabricated with the prefabricated convex beam；The prefabricated hollow board member is by reinforced concrete longitudinal rib beam, reinforced concrete gate beam, cavity body, bottom wing listrium, prefabricated hollow board member termination cross rib is recessed forms；The reinforced concrete cross rib beam steel stretches；Recessed both sides for being arranged on prefabricated convex beam of the cavity plate member lower head cross rib, convex beam and the recessed concavo-convex combination of termination cross rib, are formed without bright beam；The cavity plate component groups joint close depth≤50mm；The regeneration gate beam, the cross rib beam steel that stretches of two pieces of cavity board members is attached, forms the cavity floor of bidirectional stress.

Description

Assembled is without bright beam bidirectional stress cavity floor

Technical field

The present invention relates to a kind of assembled architecture systems technology, and in particular to assembled is without bright beam bidirectional stress cavity floor Technology.

Background technology

In order to adjust construction industry structure, construction quality is improved, Accelerating The Construction speed, realizes energy-conserving and environment-protective, reduces engineering Cost, country's proposition widely popularize assembled architecture, specify that specific implementation plan；And require in reinforced concrete frame knot Extensive use in structure, reinforced concrete frame shear wall structure, steel construction and steel-concrete combined structure system, it specify that China fills With formula architectural structure system and application field；But the assembled architecture floor ground zero of large span horizontal structure, and use Be common laminated floor slab, technological system end, which is established, causes cost high, earth-free gas, constrains assembled architecture industry development.

ZL200410082381.9 " a kind of hollow floor slab with small dense ribs " and ZL200820126232.1 such as inventor is " a kind of Cast-in-situ section steel concrete cavity building roof ", hollow filling body are embedded in formation " T fonts " stress cross-section hollow layer in cast-in-situ floor, solution Determined large span, large space, big load the problem of.In order that girt strip reinforcing bar forms continuous slab by steel I-beam web in length and breadth The cast-in-situ hollow floor plate of band, the hole reserved in steel I-beam web is too many and aperture is too small, processing trouble；Meanwhile cement is empty The heart obturator setting and hardening time is grown, and mould utilization factor is low, the big matter weight of hollow filling volume density, production and transport inconvenience and obturator The defects of globality poor cracky.

To realize industrialized production, inventor applies for that ZL201310332173.9 " use by a kind of cast-in-situ hollow building roof pore-forming again Netted box component " and ZL201510331724.X " a kind of Novel steel-mixed combination cast-in-situ hollow building roof ", to cast-in-place hollow building Lid technology carries out General Promotion, realizes transition and upgrade, updates and significantly reduce the deadweight of cavity building roof, adds certainly Thermal and insulating performance, safety of structure is strong, solves the problems, such as to realize that large span, large space, the hollow floor of big load are present； Inventor constantly lifts oneself cast-in-situ hollow building roof background technology, is established for assembled architecture large span, the horizontal structure without bright beam The basis of hard stone is determined；Although solving the problems, such as into pole industrialized production, all it is that cast-in-site is built with assembled Build generation contradiction.

Again in order to promote China's housing industrialization development, the ZL201620408935.8 of inventor's application " build by passive type Energy saving integrated system " and ZL201620409015.8 " one kind exempts from the prefabricated assembled cavity plate of formwork " are cast-in-place concrete hollow Superstructure, assembled architecture field is expanded to by creating transition, solve assembled arthitecutral structure globality poor, large span without bright The problems such as beam, component super large, component industrialization, construction quality controllability, work efficiency and environmental protection；These inventions, although being me State's Process of Housing Industrialization has tamped basis, but also exist the prefabricated assembled cavity plate member stress of long strip type one-way, The connection space limitation of the crackle in gap, bidirectional stress cavity floor transverse direction reinforcing bar during two pieces of prefabricated assembled cavity plate splits The problems such as.

Currently, since assembled architecture also has many Ji arts Wen Ti No to have solution, cause construction cost high, popularization is obstructed； In order to promote building science and technology progress, use is multi-functional, economy, scientific and technological content, energy-conserving and environment-protective and the market demand are big, safety Coefficient is high, cost is low, meets the architectural structure system of national industrial policies and industrial development direction again.Therefore, inventor exists again On the basis of existing background technology of controlling oneself, by being applied in assembled arthitecutral structure for cast-in-situ hollow building roof technology creation, shape Into new assembled cassette ceiling structural system and the combination assembled building floor structural system of steel reinforced concrete；By cast-in-place cavity building Lid Technology Difficulties problem solves in batch production, and sizing produces prefabricated post, precast beam, cavity board member, other prefabricated structures Part, steel structure member, floor construction pour top flange plate and combination girt strip or prestressed mode solution after being integrally forced through scene Certainly, the prefabricated assembled prefabricated components of factorial praluction are combined with steel structure member.And in order to promote China's house Industrialization develop in a healthy way, recently, inventor oneself production base participate in by Tongji University, civil construction institute of Central South University, Largest " steel construction cavity floor full scale test of the assembled large span without secondary beam " of national Tianjin fire research hosting, " assembled large span is without bright joist steel tendon concrete structure full scale test ", " being tested using the fire control smoke exhausting of assembled cavity floor " To examine inventor's prior art innovative, advanced, reasonability and security；Experiment is added using the multispan load of continuous slab band Full scale test and Assembled Building plate ultimate load loading full scale test are pressed, the specific data of ultimate load load test are done nothings Beam assembled experimental model span 8.4m, surrounding are encorbelmented 1.6m, length of side 11.6m, compression area 134.56m², use dynamic load 2KN, actual loaded load 22KN；Limit crack national standard is 1.5mm, and actual crack only has 0.5mm；By national standard calculating limit amount of deflection For 168mm, actural deflection 39mm；By verification experimental verification assembled architecture reinforced concrete structure without bright beam or steel construction without The security of the structure of secondary beam；Single load bearing floor member is changed into bidirectional stress floor, by monolithic freely-supported building by verification experimental verification Board member is changed into the floor construction of continuous slab band；Thoroughly solves large span floor component bonding crack cracking, fire prevention, sound insulation, normal The problems such as year maintenance, assembly technology, assembled architecture cost particularly have dropped 20%；Logical structure full scale test, for assembling Further practical basis has been tamped in innovation to formula building；But experiment disclose the distribution of assembled arthitecutral structure internal force become rule, Also in the case where ensuring the preceding topic of assembled arthitecutral structure safety requirements, space that assembled architecture technology also much optimizes.Grind Assembled is sent out without bright beam bidirectional stress cavity floor, solves the structure level direction floor globality, fire prevention, multi-functional, engagement The problems such as stitching crackle；It is the important breakthrough for realizing assembled arthitecutral structure system new technology, has become assembled architecture technology The urgent need of field innovation.

The content of the invention

It is an object of the invention to play the advantage of innovation assembled architecture technology, the shortcomings that overcoming prior art；Work The prefabricated components such as the prefabricated post of factory metaplasia production, prefabricated convex beam, prefabricated hollow board member, wallboard, pass through assembled in situ rear pouring concrete Technology combines, and improves the entirety of building structure；Country advocates prefabricated rate and reaches 40% a few days ago, will use of the present invention group Prefabricated rate reaches 75% after closing frame structure state-of-the-art technology；Cap or haunched beam are formed on the periphery of two pieces prefabricated post junction, Increase Punching Shear and shear resistance；Prefabricated convex beam uses hollow beam, mitigates the deadweight of beam, takes post stretching to apply in beam pre- Stress；The connection for being formed as cross rib beam steel of two pieces of cavity plate component assembly combination girt strip dead slots provides space, produces Regeneration gate beam, by the one-way of member stress is changed into bidirectional stress；The sky of longitudinal combination girt strip is provided for longitudinal stress Between, solve and simply supported slab is changed into continuous slab band；Longitudinal combination girt strip is applied with bonding crack, and thoroughly solves cavity plate structure Part engages the reproduction of crackle；Assembled is saved shared by existing assembled laminated floor slab technology without bright beam bidirectional stress cavity floor Benefit caused by floor height space, it is rational in infrastructure, reach the existing assembled arthitecutral structure technical system of optimization, overcome existing structure A series of defects existing for technology.

Technical scheme is as follows, and assembled includes prefabricated post, prefabricated convex without bright beam bidirectional stress cavity floor Beam, prefabricated hollow board member termination cross rib are recessed, regeneration gate beam, joint close；It is characterized in that the reserved knot in the prefabricated post both ends Structure reinforcing bar；The prefabricated convex beam two ends have reserved stress spiral or deformed bar；It is pre- in the prefabricated convex beam It is formed with longitudinal combination girt strip reinforcing bar insertion duct；The prefabricated hollow board member is by reinforced concrete longitudinal rib beam, reinforced concrete gate beam, sky Cavity, bottom wing listrium, the recessed composition of prefabricated hollow board member termination cross rib；The reinforced concrete cross rib beam steel stretches；The sky Recessed of cavity plate member lower head cross rib is arranged on the both sides of prefabricated convex beam, convex beam and the recessed concavo-convex combination of termination cross rib, Form without bright beam；The cavity plate component groups joint close depth≤50mm；The regeneration gate beam, by stretching for two pieces of cavity board members Dew cross rib beam steel is attached, and forms the cavity floor of bidirectional stress.

The prefabricated post upper end formation steel bar end is docked with prefabricated post lower end structure steel bar end to be docked, will Prefabricated post raises；Every prefabricated post docking wicking height is building floor height；The docking mode is mechanical splice or slip casting Docking；Every prefabricated post reserved steel bar is to being connected in dislocation docking.

The prefabricated convex depths of beam of reinforcing bar length ＞ after the prefabricated post reserved steel bar termination docking, are reserved in prefabricated post After steel bar end docking in the reinforcing bar length space that is formed, prefabricated convex beam steel is sealed in, to the reinforcing bar length position pour concrete, Form assembled steel reinforced concrete frame structure.

The prefabricated post sets cast-in-place solid cap with prefabricated convex beam binding site；The area of the cast-in-place solid cap ≥1.0m²。

There are deformed bar or the adjacent both sides Cavity structural member girt strip reinforcing bar of the prefabricated convex beam of connection in the prefabricated convex beam Hole；The prefabricated convex beam upper surface has reinforcing bar or suspension ring exposed.

Cavity body in the cavity board member, is engraved or prefabricated hollow or plastics cavity or foam cement block containing steel mesh with ribbing Or foam block；The steel mesh with ribbing is engraved to be engraved or fish scale steel mesh with ribbing is engraved for spreading belt rib steel net.

The bottom surface of the cavity board member longitudinal bar concrete girt strip has L shape concrete raised.

Gate beam bar connecting between two pieces of cavity board members forms regeneration gate beam.

It is mutually communicated between the cavity of the cavity board member, forms dark air channel.

The prefabricated post is precast hollow post or prefabricated convex beam is prefabricated hollow beam.

The assembled of the present invention without bright beam bidirectional stress cavity floor, is directed on the basis of Architectural Structure Design drawing The physical dimension of horizontal structure superstructure and wallboard, Architectural Structure Design drawing is decomposed, quantization Secondary Design is carried out to assembling form, Drawing resolves into N number of post and beam and assembled cavity board member and wall body construction etc., and factory is produced into by the paper organization of decomposition The prefabricated member of the specifications and models, by component be transported to engineering site assembling and after pour and form.

The assembled of specific implementation is pre- by prefabricated post base reinforcing bar and building foundation post without bright beam bidirectional stress cavity floor Bar connecting is stayed, prefabricated post upper end steel bar stress termination is attached with prefabricated post lower end steel bar stress termination to be docked, will Prefabricated post raises；Every prefabricated post connection wicking height is building floor height；Connected mode is mechanical connection or slip casting connection；It is required that Every prefabricated post reserves steel bar stress and is connected as dislocation connection, and its tie point should not be on a plane of constraint；Every prefabricated post The prefabricated convex depths of beam of reinforcing bar length ＞ after reserved steel bar stress termination connection, for the ease of connection construction, prefabricated convex The thinner thickness of ellbeam or it is thicker when, prefabricated post reserve steel bar stress termination connection after reinforcing bar length can adjust, prefabricated post In can use open tubular column；Covered again in order to allow prefabricated post concrete interface to be prefabricated convex beam rear pouring concrete, lower end prefabricated post reserves stress After steel bar end docks connection with the reserved steel bar stress termination of upper end prefabricated post, the concrete of upper end prefabricated post is less than prefabricated convex beam Upper surface；In order to mitigate deadweight, prefabricated convex beam can use hollow beam, can also use the porous hollow beam of small-bore；Work as utilization When solar heating is blown, open tubular column is connected in post beam junction with hollow beam with more siphunculus moulds by hollow, forms closed conduit；Again In order to strengthen the ability of shearing and Punching Shear, solid cap, post are formed around prefabricated convex beam and prefabricated post interface infall Reinforcing bar and relative thickness are set up by force request in cap, sleeper cap is typically identically formed with cantilever thickness, forms bright post during higher than beam Cap；When in assembled architecture in order to ensure that beam column center is misaligned, influence of the beam bias to beam column node core area, water is taken Haunch is poured after flat, haunched beam is poured after formation；Again in order to increase the shearing resistance of beam column center and bearing capacity requirement, preferably in bean column node Core take it is vertical after pour beam rest, formed after beam and pour vertical haunched beam, the anti-seismic performance of buttress brace, realize assembled architecture without Bright beam；Haunched beam is poured in order to after and organically combines face with prefabricated convex beam, its bottom slopes inwardly when making prefabricated convex beam； In prefabricated post, the structural member interface of out-hung panel is also prefabricated with；Prefabricated convex soffit is by major diameter they sup-port in lower floor On the prefabricated convex beam of floor；Prefabricated convex beam is the prefabricated convex beam without bright beam or has the prefabricated convex beam of bright beam, described without bright The prefabricated convex beam of beam uses spill termination cavity plate component, and bumps engagement is realized without bright beam；The prefabricated convex beam for having bright beam will Cavity board member is directly placed on upper position at the convex of prefabricated convex beam；Prefabricated hollow board member is by longitudinal bar concrete girt strip, horizontal steel Muscle concrete girt strip, cavity body, bottom wing listrium composition；Vertical and horizontal side girt strip in cavity board member it is wide 50mm~100mm it Between, vertical and horizontal girt strip is wide between 150mm~200mm, the vertical and horizontal rib of every cavity board member contacted with beam The first half headspace of beam, full concrete is not poured during prefabricated cavity member, is poured after staying segment space favourable；When using without the pre- of bright beam During convex beam processed, cavity plate component termination lower end is concave, and now longitudinal rib beam bottom reinforcement bars upwarps；Cavity plate component termination is direct It is placed on prefabricated convex beam bottom protrusion width, realization has bright beam floor；The upper reinforcement of cavity plate longitudinal rib beam is crossed over prefabricated Convex beam upper surface, and with adjacent longitudinal rib beam upper reinforcement bind；Cavity board member can also be made using formwork erection mode, opposition Mould requirement is mainly mould external reinforcement, it is to be ensured that large span cavity plate structure manufacture timeinvariance；Moulding in mould, is mainly concerned with sky The bottom surface of cavity plate component longitudinal bar concrete girt strip has the raised formation of L shape concrete, and cavity board member forms the mould internal model of upper surface Processing, the closure when reinforcing steel bars exposed and local caburizing of reserved steel bar and suspension ring to concrete；Cavity body in cavity board member is by band Rib steel net is engraved or prefabricated hollow or plastics cavity or foam cement block or foam block；Most preferably it is to be engraved using spreading belt rib steel net or fish Squama steel mesh with ribbing is engraved；The bottom surface of two pieces of cavity board member longitudinal bar concrete girt strips there is into L shape concrete projection split, forms split groove Mouthful, longitudinal rib reinforcement is set up in notch, it is longitudinal combination girt strip groove to be formed freely-supported cavity board member change continuous floor key Mouth space, while thoroughly solve the problems, such as that combinated seam ftractures during split again；The other split notch space is also regeneration gate beam Connection space is provided, the cross rib reinforcing bar of adjacent two pieces of cavity board members is connected using welding or mechanical connection or grouting method Connect, form regeneration gate beam, it is two-way without bright beam bidirectional stress cavity floor that cavity board member single load bearing plate is changed into assembled Stressed plate；In order to reduce the connection of regeneration gate beam, also can in cavity board member girt strip preset elongated deformed bar or pre- Stress steel strand rope duct is managed, and during assembled in situ, deformed bar is sealed in the pipe of duct, takes post stretching to apply prestressing force；Will Prefabricated post vertical applied force bar connecting, prefabricated convex beam bottom mother plate support, install cap or haunch beam mould, cavity board member It is placed on beam bottom mother plate, the excessively prefabricated convex beam of the elongated reinforcing bar string of longitudinal combination girt strip and Peng tie, carry out set aside pre-embedded pipe Line, cavity board member cavity between be mutually communicated to form closed conduit；For fire control smoke exhausting closed conduit, in order to reduce fire control smoke exhausting Resistance, steel mesh with ribbing engrave in put Jiong shape thin-walled air channel or thin plate air channel again, steel mesh with ribbing engraves the termination along Jiong shape thin-walled air channel Perforate, local dark air channel is formed, resistance caused by participating in smoke evacuation due to whole cavity body when reducing smoke evacuation, improve smoke evacuation effect again Fruit；After the reserved stretching cross rib reinforcing bar of connection forms regeneration cross rib reinforcing bar, assembled is re-layed without bright beam bidirectional stress cavity building The top flange plate reinforcing bar of slab-type apartment building plate, thereafter to above-mentioned each headspace property pour concrete again；In the prefabricated plug-in of prefabricated post Pole is connected in panel structure part device interface, prefabricated Self-insulation wall plate is placed on rod rest；Wallboard contains armored concrete Frame, enhancing durability steel mesh body with ribbing, the wallboard appearance composite bed containing steel mesh body with ribbing and the wall containing steel mesh body with ribbing Table composite bed, heat-insulation layer in plate, with reference to Liu Kou；In the presence of formwork erection, by the reinforcing bar keel of reinforcing bar frame and steel mesh with ribbing Body is placed in formwork erection, first by pour concrete in reinforcing bar frame, in wallboard appearance and Nei Biao cast mortars, mortar and steel mesh with ribbing Bluk recombination, the wallboard appearance and Nei Biao composite beds of durability are formed, then foamed concrete thermal insulating material is injected in steel mesh body with ribbing Material forms heat-insulation layer, and formwork erection upper end is closed with concrete；To prevent wall from seeping water, opposite combination Liu Kou is set to prevent on wallboard longitudinal direction both sides Water, the maintenance demoulding obtain wallboard；Rear pouring concrete form removal obtains required assembled without bright beam bidirectional stress cavity floor building.

Brief description of the drawings

Fig. 1 is the prefabricated convex beam of the present invention without bright beam floor cross section.

Fig. 2 is prefabricated post node diagram of the present invention.

Fig. 3 is cavity floor longitudinal combination girt strip explosion views of the present invention.

Fig. 4, Fig. 5, Fig. 6 are front view, stereogram and the side view of cavity board member of the present invention.

Fig. 7 is that steel mesh with ribbing engraves structure chart in cavity board member of the present invention.

Embodiment

The present invention is further described below in conjunction with the accompanying drawings.

Fig. 1 be the prefabricated convex beam of the present invention without bright beam floor cross-sectional embodiment, when the present invention is implemented, factory is made Good prefabricated convex beam 2, the bottom width of prefabricated convex beam 2 within 600mm, the height of prefabricated convex beam 2 600mm with It is interior；In order to mitigate weight, hollow beam 26 can be formed；When forming the prefabricated convex beam without bright beam floor, under cavity plate component termination Hold concave, the prefabricated bottom protrusion height of convex beam 2 is usually within 100mm, longitudinal rib beam direction stress is now ensured, by longitudinal rib Beam bottom reinforcement bars termination upwarps 100mm；The prefabricated bottom protrusion width of convex beam 2 is usually 100mm, cavity plate component termination lower end Concave size matches with beam, and bumps combine, and realize without bright beam floor；Cavity board member 3 is transported to after job site respectively, The prefabricated bottom of convex beam 2 is supported with heavy caliber support bar 24 again, between the assembly of support bar 24 and the prefabricated bottom of convex beam 2, most Handy supporting plate 23 balances；The prefabricated bottom protrusion height of convex beam 2 is usually most preferably 100mm within 200mm；Prefabricated convex beam 2 Bottom protrusion width is usually most preferably 100mm within 150mm；The prefabricated middle and upper part ledge width of convex beam 2 is usually 400mm Within, height ＞ 300mm；The extension of reinforcing bar 21 waits to go here and there prefabricated post and prefabricated post steel bar stress connection space, and prefabricated post connects The part of cap is set up in socket part position；Cavity board member 3 is placed in the both sides of the prefabricated hoop reinforcing steel bar 22 of convex beam 2；In order to hold By the partial pressure of cavity board member 3, N root hyphens reinforcing bar 25 is additionally arranged at the bottom of to strengthen in prefabricated convex beam 2, but it is pre- in order to reduce The thickness of the bottom projection of convex beam 2 processed, N root hyphen reinforcement fabrications are into two concave shape 25, by the prefabricated bottom of convex beam 2 The reinforcing bar on both sides is placed on concave shape position, and the reinforcing bar on the bottom both sides of convex beam 2 is chosen with N root hyphen reinforcing bars, in N root hyphen steel The prefabricated hoop reinforcing steel bar of convex beam 2 that muscle is fabricated to the position of two concave shape 25 is bigger than the diameter of other hoop reinforcing steel bars；It is pre- in order to mitigate The deadweight of convex beam 2 processed and solar energy, fire control smoke exhausting multipotency pipeline are realized using prefabricated convex beam 2, prefabricated convex beam 2 is formed Hollow beam 26.

Fig. 2 is prefabricated post node diagram of the present invention, the reinforcing bar 11 of the two sections prefabricated post 1 contour with floor is vertically connected, even Connect and typically use slip casting method joint 12, upper section prefabricated post reinforcing bar 11 should not be in same level with lower section prefabricated post reinforcing bar 11 every On face, joint 12 should misplace 13 connections, upper section prefabricated post reinforcing bar 11 and lower section prefabricated post reinforcing bar 11 every misplace 13 be connected after, shape Stretch to the space 14 of bar connecting into precast main beam；In order to allow the concrete of upper section prefabricated post 1 to be combined with rear pouring concrete, upper section is prefabricated The concrete of post 1 should be less than the surface of floor top flange plate rear pouring concrete.

Fig. 3 is cavity floor longitudinal combination girt strip explosion views of the present invention, is the globality of reinforcement structure stress and from basic The upper combinated seam 29 solved between two pieces of cavity board members 3 ftractures, and the bottom surface on cavity board member longitudinal rib beam side has L shape concrete convex 211, ledge width 70mm are played, raised high width is within 30mm；By the adjacent longitudinal bar concrete girt strip side of two pieces of cavity board members 3 Raised 211 splits of the L shape concrete of 27 bottom surfaces, form split notch 25 and combinated seam 29, longitudinal direction are disposed in split notch 25 Girt strip reinforcing bar 26 is combined, and longitudinal combination girt strip hole is reserved by prefabricated convex beam, forms elongated reinforcing bar；In split notch 25 Connect transverse steel and formed and regenerate horizontal girt strip；Engrave and superstructure is laid above 28 in cavity plate member upper surface and steel mesh with ribbing again Top flange plate reinforcing bar, thereafter property pour concrete again；In order to exclude open type cavity board member in time in accumulating and installation process In casual water, in the bottom wing listrium of cavity board member set row casual water N number of aperture 212.

Fig. 4, Fig. 5, Fig. 6 are front view, stereogram and the side view of cavity board member of the present invention, and cavity board member 3 is by indulging To girt strip 214, longitudinal girt strip side 27, the L shape concrete projection 211 of longitudinal edge rib, horizontal girt strip 215, the horizontal girt strip of regeneration Reinforcing bar stretching, termination transverse direction girt strip 213, steel mesh with ribbing are engraved 216, closed conduit hole 315 and formed；In crisscross girt strip grid Lay steel mesh with ribbing and engrave 216, in order to reduce fire control smoke exhausting resistance, set up in steel mesh with ribbing engraves 216 the small closed conduit of plate system with it is dark Pipe hole 315 penetrates；Surface is provided with suspension ring and rib reinforcement and reserves exposed, and concrete or mortar are prefabricated with girt strip and bottom wing listrium 314； During used in floor without bright beam, the lower end of two ends cross rib 213 concave 313 of cavity board member 3.

Fig. 7 is that steel mesh with ribbing engraves structure chart, with ribbing steel mesh of the cavity board member into cavity in cavity board member of the present invention Engrave 5 and body 54 is engraved by steel mesh body with ribbing, built-in bar-mat reinforcement supporter net 53, plug 57 and impression corner 56 are formed；In order to reduce Engraved as exhaust resistance during fire control smoke exhausting pipeline in steel mesh with ribbing in 5 in the space 55 that steel mesh with ribbing is engraved into structure whole cavity Jiong shape sheet-metal duct 52 is put again, allows the wind with smog directly to engrave to put again in 5 in Jiong shape sheet-metal duct 51 from steel mesh with ribbing and discharge；Band Rib steel net is engraved 5 and is used along the termination perforate in Jiong shape thin-walled air channel 51 as fire-fighting smoke controlling pipeline or solar energy air supply duct, real Cavity floor multifunctional application is showed.

Finally it should be noted that:The above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof, to the greatest extent The present invention is described in detail with reference to above-described embodiment for pipe, it should be understood by a person of ordinary skill in the art that still The embodiment of the present invention can be modified or equivalent substitution, and end departs from any of spirit and scope of the invention Modification or equivalent substitution, it all should cover among scope of the presently claimed invention.

Claims (10)

1. assembled is without bright beam bidirectional stress cavity floor, horizontal comprising prefabricated post, prefabricated convex beam, prefabricated hollow board member termination Rib is recessed, regeneration gate beam, joint close；It is characterized in that structure reinforcing bars are reserved at the prefabricated post both ends；The prefabricated convex beam two There are reserved stress spiral or deformed bar in termination；The insertion of longitudinal combination girt strip reinforcing bar is prefabricated with the prefabricated convex beam Duct；The prefabricated hollow board member is by reinforced concrete longitudinal rib beam, reinforced concrete gate beam, cavity body, bottom wing listrium, prefabricated hollow plate The recessed composition of component termination cross rib；The reinforced concrete cross rib beam steel stretches；Described recessed peace of cavity plate member lower head cross rib Mounted in the both sides of prefabricated convex beam, convex beam and the recessed concavo-convex combination of termination cross rib, form without bright beam；The cavity board member Combinated seam depth≤50mm；The regeneration gate beam, the cross rib beam steel that stretches of two pieces of cavity board members is attached, formed The cavity floor of bidirectional stress.

2. assembled as claimed in claim 1, without bright beam bidirectional stress cavity floor, its spy is the prefabricated post upper end knot Structure steel bar end is docked with prefabricated post lower end structure steel bar end to be docked, and prefabricated post is raised；Described every prefabricated Post docking wicking height is building floor height；The docking mode is that mechanical splice or slip casting are docked；Every prefabricated post is reserved Steel reinforcement abutting joints dock for dislocation.

3. assembled as claimed in claim 1 is without bright beam bidirectional stress cavity floor, it is characterised in that the prefabricated post is reserved The prefabricated convex depths of beam of reinforcing bar length ＞ after steel bar end docking, the steel formed after being docked in prefabricated post reserved steel bar termination In muscle length space, prefabricated convex beam steel is sealed in, to the reinforcing bar length position pour concrete, forms assembled steel reinforced concrete frame knot Structure.

4. assembled as claimed in claim 1 is without bright beam bidirectional stress cavity floor, it is characterised in that the prefabricated post with it is pre- Convex beam binding site processed sets cast-in-place solid cap；Area >=1.0m of the cast-in-place solid cap²。

5. assembled as claimed in claim 1 is without bright beam bidirectional stress cavity floor, it is characterised in that the prefabricated convex beam In have the hole of deformed bar or the adjacent both sides Cavity structural member girt strip reinforcing bar of the prefabricated convex beam of connection；On the prefabricated convex beam Surface has reinforcing bar or suspension ring exposed.

6. assembled as claimed in claim 1 is without bright beam bidirectional stress cavity floor, it is characterised in that the cavity board member In cavity body, engraved containing steel mesh with ribbing or prefabricated hollow or plastics cavity or foam cement block or foam block；The steel mesh with ribbing Engrave and engraved for spreading belt rib steel net or fish scale steel mesh with ribbing is engraved.

7. assembled as claimed in claim 1 is without bright beam bidirectional stress cavity floor, it is characterised in that the cavity board member The bottom surface of longitudinal bar concrete girt strip has L shape concrete raised.

8. assembled as claimed in claim 1 is without bright beam bidirectional stress cavity floor, it is characterised in that two pieces of cavity plates Gate beam bar connecting between component forms regeneration gate beam.

9. assembled as claimed in claim 1 is without bright beam bidirectional stress cavity floor, it is characterised in that the cavity board member Cavity between be mutually communicated, form dark air channel.

10. assembled as claimed in claim 1 is without bright beam bidirectional stress cavity floor, it is characterised in that the prefabricated post is pre- Open tubular column processed or prefabricated convex beam are prefabricated hollow beam.